Subject: [IGSREPORT-4594] Wk 0940 EUREF Analysis Report
From: D. Ineichen
Date: Tue, 10 Feb 1998 10:20:17 PST

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IGS Electronic Report    Tue Feb 10 10:20:17 PST 1998      Message Number 4594
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Author: D. Ineichen
Subject: Wk 0940 EUREF Analysis Report

 *******************************************************************************
 EUREF REPORT FOR GPS WEEK 0940 (DAYS 011-017, DATES 11-01-98 - 17-01-98)
 *******************************************************************************
 Report of the combination of the European weekly GPS solutions

 International Association of Geodesy
 Commission X - Global and Regional Geodetic Networks
 Subcommission for Europe (EUREF)

 Contributing Solutions:
 -----------------------
 Group Description                                         Contribution

 ASI - Nuova Telespazio S.p.A., Space Geodesy Center          SINEX
 BEK - International Commission for Global Geodesy of         SINEX
       the Bavarian Academy of Sciences (BEK)
 COE - European solution created at CODE                      SINEX
       (Center for Orbit Determination in Europe)
 GOP - Geodetic Observatory Pecny, Czech Republic             SINEX
 IFG - Institute for Applied Geodesy in Germany (IfAG)        SINEX
 LPT - Bundesamt fuer Landestopographie (L+T), Switzerland    SINEX
 NKG - Nordic Geodetic Commision (NKG)                        SINEX
 OLG - Observatory Lustbuehel Graz (OLG)                      SINEX
 ROB - Royal Observatory of Belgium (ROB)                     SINEX
 WUT - Warsaw University of Technology (WUT)                  SINEX
 
 SINEX: Software independent exchange format Version 0.05 or 1.00

 Submitted by: Center for Orbit Determination in Europe (CODE)
               Astronomical Institute, University of Berne, Switzerland

 Contact     : Daniel Ineichen ([email-masked])
 
 Products available through anonymous ftp using:
            A) ftp ubeclu.unibe.ch  -or-  ftp 130.92.6.11
               after login: cd aiub$ftp; cd euref
            B) ftp igs.ifag.de      -or-  ftp 141.74.240.26
               after login: cd pub/EUREF/CLUSTERS/wwww  (GPS week wwww)
            C) ftp ftpserver.oma.be -or-  ftp 193.190.249.203
               after login: cd pub/astro/euref/product/combin

 Processing Strategy:
 --------------------

 - The combined weekly EUREF solution (EUR) is created after removing the 
   Analysis Center specific constraints.
 - Covariance rescaling factors are derived from the sampling rate used by
   each center. In fact all solutions contribute to the combined solution 
   with the same weight.
   The rescaling factors of all centers are chosen such that they give
   the resulting EUREF solution realistic formal errors.
 - The ITRF93 coordinates (up to GPS week 0859) respectively
   the ITRF94 coordinates (since GPS week 0860) of the sites:
      BRUS, GRAZ, KOSG, MATE, METS, ONSA, WTZR, and ZIMM 
   are used to align the solutions with the terrestrial reference frame. 
 - The comparisons between each individual solution and the combined solution
   is done using a 7-parameter Helmert transformation. The Helmert parameters
   are determined using all sites of the individual solutions.
 - In the first Table unweighted rms values (for the coordinate components in 
   the local system North-East-Up), derived from the Helmert residuals, are 
   shown for each site.
 - In the second table an (unweighted) rms is computed for each Analysis Center.
   These values are derived from the Helmert residuals of all sites of a
   particular Analysis Center. 

 AVAILABLE FILES:
 -----------------------------------------------------------------------------
 EUR09407.SUM           THIS TEXT FILE
 EUR09407.SNX           COMBINED EUROPEAN SOLUTION FOR GPS WEEK 0940
 -----------------------------------------------------------------------------
 
 REMARKS: - Site SFER excluded from combined solution (antenna change for
            test purpose).

 COMBINATION GPSWEEK 0940, EUROPE                       
 -------------------------------------------------------------------------------
 PROCESSED FILES         :    10
 TOTAL NUMBER OF STATIONS:    54
 -------------------------------------------------------------------------------
                                                                                
                      0000000001  RESIDUAL RMS IN MM                            
 STATION       #FILES 1234567890     N     E     U                              
 -------------------------------------------------------------------------------

 CAGL 12725M003     3 MMM          0.8   1.4   4.5
 EBRE 13410M001     3 MMM          0.8   1.0   7.6
 MADR 13407S012B    3 MM  M        1.4   4.4   5.9
 MATE 12734M008     3 NN  N        0.5   0.8   1.7
 MEDI 12711M003     3 MM     M     0.2   1.5   2.4
 NOTO 12717M003     3 MMM          2.2   1.3   5.7
 VILL 13406M001     3 MMM          2.8   1.8   7.2
 WTZR 14201M010     4 N   N N  N   1.4   1.1   3.1
 ANKR 20805M002     3  MM M        1.4   1.3   5.1
 SOFI 11101M002     3  M  M  M     1.0   1.0   2.0
 GRAS 10002M006     3  M   M  M    0.2   0.2   3.8
 TOUL 10003M004     3  MM     M    0.2   0.5   3.3
 MASP 31303M002     2  MM          1.1   4.7  11.8
 NICO 14302M001     3  M  M  M     1.2   2.0   3.6
 UPAD 12750M002     3  M   M M     0.2   0.7   1.9
 VENE 12741M001     2  M     M     0.6   0.6  17.8
 BOGO 12207M002     3   MM     M   0.1   0.6   3.2
 BOR1 12205M002     3   M    M M   0.2   0.2   1.3
 MAR6 10405M002     3   MM  M      0.4   0.6   2.5
 DELF 13502M004     3   M  M  M    0.2   0.3   2.4
 DOUR 13113M001     3   M  M  M    0.2   0.2   1.3
 ZIMM 14001M004     3   N  N N     0.6   0.6   3.7
 HOFN 10204M002     3   M M M      1.2   0.8   3.3
 REYK 10202M001     3   M M M      1.0   1.3   7.3
 VIL0 10424M001     3   M M M      1.0   1.1   0.8
 JOEN 10512M001     3   M   M  M   0.6   0.7   3.5
 MDVO 12309M002     3   MM     M   0.5   2.9   2.0
 ZWEN 12330M001     3   MMM        0.4   4.5   3.3
 KIRU 10403M002     2   M M        1.0   1.7   5.2
 SODA 10513M001     2   M   M      0.3   1.4   2.8
 KELY 43005M001     2   M   M      2.2   3.4   3.1
 THU1 43001M001     2   M   M      3.1   1.5   4.3
 KIR0 10422M001     2   M   M      0.3   0.7   2.2
 LAMA 12209M001     3   M    M M   0.4   0.3   2.9
 ZECK 12351M001     3   MMM        2.6   2.1   3.6
 PENC 11206M006     3   M    M M   0.5   0.5   3.6
 VAAS 10511M001     3   M   MM     1.1   1.0   2.3
 GOPE 11502M002     3    M   M M   0.2   0.3   2.6
 ONSA 10402M004     4    NN N  N   0.9   1.4   1.8
 VIS0 10423M001     3    M  MM     0.4   0.6   2.3
 GRAZ 11001M002     3    NN  N     0.5   0.6   3.3
 OBER 14208M001     3    M   MM    0.8   0.2   3.7
 RIGA 12302M002     3    M  M  M   0.3   1.0   1.8
 SVTL 12350M001     3    M  M  M   0.6   1.1   2.9
 BRUS 13101M004     3     N N N    1.0   0.2   2.6
 KOSG 13504M003     3     NN  N    0.6   0.9   1.4
 METS 10503S011     3     N N  N   0.3   0.8   3.5
 POTS 14106M003     3     M M M    0.3   0.4   3.4
 WROC 12217M001     3     M  M M   0.4   0.2   1.8
 DENT 13112M001     2      M  M    0.1   0.2   0.5
 WARE 13114M001     2      M  M    0.3   0.1   0.8
 PFAN 11005S002     3      M MM    0.3   0.4   1.8
 WSRT 13506M005     2       M M    0.8   0.2   2.1
 JOZE 12204M001     3       MM M   0.4   0.3   2.0
 -------------------------------------------------------------------------------

 FLAGS:    M: MEAN, F: FIXED, N: FREE NETWORK RESTRICTIONS

1

 -------------------------------------------------------------------------------
 UNWEIGHTED RMS VALUES WITH RESPECT TO THE COMBINED SOLUTION IN MM
 -------------------------------------------------------------------------------
 PROCESSED FILES         :    10
 TOTAL NUMBER OF STATIONS:    54
 -------------------------------------------------------------------------------

 FILE  GRP    #SITES   COV.COMP. COMPONENT      RMS
 ---------------------------------------------------
                                     N          2.0
    1  ASI         8     0.0080      E          1.4
                                     U          4.7
 ---------------------------------------------------
                                     N          0.5
    2  BEK        15     0.0200      E          1.4
                                     U          5.3
 ---------------------------------------------------
                                     N          0.9
    3  COE        28     0.0200      E          1.4
                                     U          3.9
 ---------------------------------------------------
                                     N          1.0
    4  GOP        12     0.0200      E          1.7
                                     U          1.7
 ---------------------------------------------------
                                     N          1.1
    5  IFG        19     0.0200      E          1.9
                                     U          3.9
 ---------------------------------------------------
                                     N          0.2
    6  LPT         9     0.0200      E          0.2
                                     U          1.7
 ---------------------------------------------------
                                     N          0.4
    7  NKG        20     0.0200      E          0.4
                                     U          1.8
 ---------------------------------------------------
                                     N          0.6
    8  OLG        17     0.0200      E          0.8
                                     U          2.6
 ---------------------------------------------------
                                     N          0.3
    9  ROB        12     0.0200      E          0.2
                                     U          2.7
 ---------------------------------------------------
                                     N          0.4
   10  WUT        14     0.0200      E          0.9
                                     U          2.9
 ---------------------------------------------------
                                     N          0.8
       MEAN       54                 E          1.2
                                     U          3.3

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